package com.bird.jdk.内部类.闭包;

/**
 * @author sijunqiang
 * @data 2021/4/7 8:01
 * @description: 回调方法一
 */
public class Callee1 implements Incrementable {

    private int i = 0;

    @Override
    public void increment() {
           i++;
        System.out.println("i = " + i);
    }
}
